13FBOX
SEPTERNA INC · 13F Institutional Holdings
Options Calculator Rankings
S

SEPTERNA INC

SEPN
Institutions
158
Combined AUM (Q2 2026)
$1.63B
Combined Shares (Q2 2026)
48.7M
Overall Trend
Increase
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+6.5M
101 · 49 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-3.6M
49 · 17 Exit · ≈
⚖️ Net
+2.9M
Net Buy
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$1.63B
Institutions
158
New Buys
49
Adds
52
Reduces
32
Exits
17
Unchanged
25
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
RA CAPITAL MANAGEMENT, L.P.
2.04%1.78%#6$234.3M7.0M$168.1M7.0M00.00%Unchanged
TRV GP V, LLC
41.78%37.25%#2$208.2M6.2M$149.4M6.2M00.00%Unchanged
DRIEHAUS CAPITAL MANAGEMENT LLC
0.86%0.78%#11$148.5M4.4M$105.6M4.4M+37,486+0.85%Add
TRV GP VI, LLC
60.72%74.64%#1$141.0M4.2M$101.2M4.2M00.00%Unchanged
Samsara BioCapital, LLC
8.66%7.35%#3$105.5M3.1M$75.7M3.1M00.00%Unchanged
GOLDMAN SACHS GROUP INC
0.01%0.01%#42$102.6M3.1M$69.8M2.9M+156,339+5.38%Add
BlackRock, Inc.
<0.01%<0.01%#70$64.7M1.9M$43.8M1.8M+109,914+6.03%Add
Siren, L.L.C.
1.29%1.33%#9$63.6M1.9M$48.1M2.0M-100,000-5.00%Reduce
Avoro Capital Advisors LLC
0.4%0.32%#15$44.8M1.3M$32.1M1.3M00.00%Unchanged
Jupiter Topco LLC
0.02%#37$43.7M1.3M$00+1.3MNew Buy
VANGUARD CAPITAL MANAGEMENT LLC
<0.01%<0.01%#72$40.9M1.2M$28.8M1.2M+24,711+2.06%Add
PRIMECAP MANAGEMENT CO/CA/
0.02%0.02%#33$39.1M1.2M$25.2M1.0M+118,548+11.30%Add
First Light Asset Management, LLC
1.96%1.58%#7$32.3M963,260$17.6M732,860+230,400+31.44%Add
ADAR1 Capital Management, LLC
1.45%1.54%#8$31.5M940,747$26.2M1.1M-149,071-13.68%Reduce
GEODE CAPITAL MANAGEMENT, LLC
<0.01%<0.01%#66$22.8M679,163$15.5M645,146+34,017+5.27%Add
Caption Management, LLC
0.11%#23$22.7M678,006$00+678,006New Buy
STATE STREET CORP
<0.01%<0.01%#84$21.9M652,630$15.2M631,447+21,183+3.35%Add
LOOMIS SAYLES & CO L P
0.03%#31$20.9M624,752$00+624,752New Buy
Casdin Capital, LLC
0.93%1.01%#10$18.5M553,268$13.3M553,26800.00%Unchanged
Catalio Capital Management, LP
3.37%1.48%#5$18.0M536,152$7.1M294,360+241,792+82.14%Add
ALGERT GLOBAL LLC
0.16%0.01%#21$13.3M397,487$505,00021,035+376,452+1,789.65%Add
BALYASNY ASSET MANAGEMENT L.P.
0.01%0.01%#39$11.7M350,442$5.7M236,679+113,763+48.07%Add
TUDOR INVESTMENT CORP ET AL
0.02%#38$11.0M328,966$00+328,966New Buy
Longaeva Partners L.P.
0.22%0.07%#20$10.0M298,171$1.8M74,567+223,604+299.87%Add
SUSQUEHANNA INTERNATIONAL GROUP, LLP
<0.01%<0.01%#79$9.9M295,900$1.8M73,000+222,900+305.34%Add
Soleus Capital Management, L.P.
0.32%0.27%#16$9.2M275,000$6.6M275,00000.00%Unchanged
VANGUARD PORTFOLIO MANAGEMENT LLC
<0.01%<0.01%#98$7.7M230,184$4.7M195,043+35,141+18.02%Add
Universal- Beteiligungs- und Servicegesellschaft mbH
0.01%0.01%#41$7.5M222,702$5.4M223,995-1,293-0.58%Reduce
TWO SIGMA INVESTMENTS, LP
0.01%<0.01%#48$7.4M220,885$1.8M75,367+145,518+193.08%Add
NORTHERN TRUST CORP
<0.01%<0.01%#78$6.7M201,131$4.0M164,530+36,601+22.25%Add
Kalehua Capital Management LLC
4.67%3.31%#4$6.5M194,544$4.7M194,54400.00%Unchanged
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
<0.01%<0.01%#75$6.3M187,041$4.4M181,580+5,461+3.01%Add
Woodline Partners LP
0.02%#36$6.2M185,535$00+185,535New Buy
VANGUARD FIDUCIARY TRUST CO
<0.01%<0.01%#65$5.5M165,656$3.7M154,484+11,172+7.23%Add
MORGAN STANLEY
<0.01%<0.01%#113$4.5M134,377$1.0M54,458+79,919+146.75%Add
JANE STREET GROUP, LLC
<0.01%#108$3.4M102,752$00+102,752New Buy
UBS Group AG
<0.01%<0.01%#94$3.0M89,874$2.8M116,979-27,105-23.17%Reduce
JPMORGAN CHASE & CO
<0.01%<0.01%#123$3.0M85,301$2.0M84,674+627+0.74%Add
CITADEL ADVISORS LLC
<0.01%#100$3.0M88,150$00+88,150New Buy
FEDERATED HERMES, INC.
<0.01%<0.01%#50$2.9M86,753$2.1M89,301-2,548-2.85%Reduce
LAZARD ASSET MANAGEMENT LLC
<0.01%#51$2.5M75,425$00+75,425New Buy
DIMENSIONAL FUND ADVISORS LP
<0.01%#88$2.5M75,309$00+75,309New Buy
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
<0.01%#67$2.5M74,649$00+74,649New Buy
JACOBS LEVY EQUITY MANAGEMENT, INC
0.01%<0.01%#43$2.3M68,180$683,31728,436+39,744+139.77%Add
HUSSMAN STRATEGIC ADVISORS, INC.
0.49%0.55%#12$2.1M63,000$2.5M105,000-42,000-40.00%Reduce
AMERICAN CENTURY COMPANIES INC
<0.01%<0.01%#71$2.0M60,973$1.5M61,290-317-0.52%Reduce
DIADEMA PARTNERS LP
0.25%<0.01%#17$2.0M59,700$4,854202+59,498+29,454.46%Add
Bank of New York Mellon Corp
<0.01%<0.01%#105$1.9M56,176$1.4M58,709-2,533-4.31%Reduce
XTX Topco Ltd
0.02%0.02%#32$1.8M54,489$882,45436,723+17,766+48.38%Add
MILLENNIUM MANAGEMENT LLC
<0.01%<0.01%#86$1.7M50,562$3.0M124,101-73,539-59.26%Reduce

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow